[ET Trac] [Einstein Toolkit] #1377: GRHydro_Bondi.c and GRHydro_BondiM.c use M_PI

[Einstein Toolkit]

#1377: GRHydro_Bondi.c and GRHydro_BondiM.c use M_PI
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  Reporter:  sbrandt                |       Owner:                     
      Type:  defect                 |      Status:  new                
  Priority:  minor                  |   Milestone:                     
 Component:  EinsteinToolkit thorn  |     Version:  development version
Resolution:                         |    Keywords:  GRHydro M_PI       
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Comment (by rhaas):

 Instead of adding M_PI to out source files, we tend to make to get the BSD
 (or GNU which includes them) extensions which define M_PI. The required
 define tends  to be -D_BSD_SOURCE . Can you try this?

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1377#comment:1>
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